Stereotype-matrix-making machine



March 6, 1928. 1 1,661,251

G. M. REPP STEREOTYPE MATRIX MAKING MACHINE Filed Feb. 28. 1927 E11 33cm J3 A? o G193 z 35 INVENTOR VORNEY Fatented Mar. 6,

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. j STEREOTYPEQMATBIX-MAKING MACHINE.

7 Application filedlebruary 28, ,1927- Serial No. 171,442.

- This invention relates to the art of print-. ing :and has particularreference to the means for expeditiously and reliably makingsterotypematriees. V

Whereas in the usual or old practlce of matrix making, theflong orplastic mass is .forced or worked manually or otherwise upon and intothe set-up, such as type, plates,

orotheroriginal matter, aprocess involving a tremendous amountof manuallabor and time, both of which conditions are ofex treme importance :in aprinting-office, by this new process or" mechanism the making ofthe'matrices is performed rapidly and with the highest degree ofefficiency and perfection and with relatively little manual labor. Up tothe present time the only known method of making a matrix is'to layforplace the 'fiong on the type form, then by means of manual labor thefiongis subjected to a molding process by means of pressure; then bymanual laborthe type form with the molded flong thereon is moved onto a.

hot drying-element and allowed to remain until dried into matrixformation. Following this the hot form is removed by manual labor fromthe drying element, the flong which was previously moist and which hasnow become the completed dry matrix, is removed from the type form'andis suitable for casting stereotype plates therefrom for printingpurposes. All this entailsa great amount ofimanual labor-and an extremeexpenditure of time due to the fact that the type must be handledmanually so'frequently throughout the process. v r

.-Amongthe objects of this present invention, therefore, is toprovide amachine for the making of matrices, the machine being so designed as tooperate to a large extent automatically and very rapidly, and with; thefurther qualification thatthe output is uniformly of a high degree ofperfection.

"With the foregoing and other objects in View the invention consistsin'the arrange ment and combination of parts hereinafter described andclaimech'and while the inven? tion is not restricted to the exactdetails. of

Y in the several views, and in Which- Figure 1 is a vertical sectionalview of a piece of flong. r

Fig. 4 is a similar View of a finished mapreferred embodiment of theinvention, the illustration being somewhat diagrammatic.

Fig. 2 is a plan view of the same. 1 Fig. 3 .is a detail perspectiveView of a trix' made from such apiece of flong..'

I wish to emphazie'that the mechanism displayed he'rein as a suggestionof suitable apparatus is to be understood and interpreted in itsbroadest aspect, inasmuch as it is obvious that the details ofconstruction and mode of operation may be varied extensively or carriedout in practice in various modes so long as the broad principle of theinvention is not departed from. r

Making now a more specific description of the mechanism illustrated, Ishow at 10 a base. adapted to support for rotation around a verticalaxis a platform or turn table 11 shown as provided with a verticaljournal 12 located in the bearing 13 made as a part of the base. Forconvenience the turn table is shown as ofcircular form in plan view andprovides seats for a plurality of type forms andunits of operation,these seats being indicated atA,B, G, and .D..: WhileI have shown four,a variable number ,ofsuch seats might be provided, ,It will-beunderstood that these seats are'largev enough in vscope to accommodate typeforms 14, l5, 16,.

and 17, sufficiently large for newspaper Work or any other size matrixthat may be desired to be made from the type forms- V I 18 representsdiagrammatically the face of a type' form of any .suitable'matter set upfrom type, cuts,lor the like suitable for reproduction inthe' matricesand for'printing asa resultof the making of the matrices.

M indicates amotor of any suitable type or construction adapted to bestarted and stopped automatically by means of a start and stop switchmechanism at 19. The intervals or d'wells and operation of the motor maybe timed according tothe nature of the work, but it may be assumed thatthe dwells may be approximately sixty seconds.

The turn table is caused to rotate around its vertical axis byanysuitable means preferably a roller 20 journaled in upright extensions2land 22 of the'base. To the horizontal shaft 23 of the roller there isattached a driving member such as a belt pulley 24 high speed motorshaft through a belt 25 and pinion26. The surfaces of the roller 20 andthe underside of the turn table are so correlated as to cause thedriving of the turn table with the least amount of friction.

This operation is assisted by'means of convenient manner but as shown itis driven 1 by a pair ofbeveled gears 31 and 32 connected to therespective roller shafts. .Consequently when the lower shaft is rotated,

the upper shaft and its roller will be rotated and at the same speed.Each roller constitutes a resistance for the pressure applied tothe turntable by the other roller and they co-operate, moreover, to driveeffectively the turn table between them.

'33 indicates a strip or section of flong which is a piece of plasticmaterial such as is commonly used for matrix making purposes. This bodyof material, though moist,

is of'suflicient firmness and strength to .be

' handled, and so it isplaced upon the type face 18 in form 14 at theseat A, itbeing understood that the operator stands at the side of theturn table represented by the bottom of Fig. 2. The" direction ofrotation of the turn table is counter clockwise or as shown by thearrow. Immediately after the flong is put upon the type face18', therotation of the table brings this form 14 with the .flong thereon intoengagement with the roller 27, the effect of which is to force the massof plastic materialinto proper place upon, into, or among the type facesand to express any surplus of moisture therefrom which may be collectedor disposed of in any convenient manner. The

table thence continues to rotate step by step until the piece of flongunder consideration is cured to a dry matrix 34 and thus returns withthe-form 14 to its original seat.

The turn table is madeof a material suitable for receiving asufficientdegree or quan- .tity of-heat for the purpose of drying thepiece of flong while it passes in its circuit past the seats B, 'C, andD, backcto. its starting point. Any jsuitable-imeansymaybe pro vided forheating the'turntableq-and flong. I indicate for this purpose a gasburner 35 extendingpalongapproximately one-half of the scope of'the'turn table, the heat from the burner being caused to play directlyagainst the under surface of the turn table,

.therebyheating the, same and the devices 7 7 carried thereby.

The type forms 14,15, 16,17, may be all the same or different-as .mayebedesired.

The operator, however, manipulates ;-the

flongs upon the several type tformsein-suees .sion asnthe seats come. inrotation -=within his" reach. That is -to say as indicated herein, theflong'will be placed :uponthe form :14

atthe seat A and directly thereafter: another seat or form 15, 01216, or.17,;Willbe;.brought intov reach of the operator who :will uremove thedried imatrix :34 :therefrom ;and ,avill place another fiong: upon the:same :typerform upon which the. dried 'matri-xwas so cformed and s0removed. The ;.dwells .or inter-vials of time of rest between,successive.:actuations of the :table will i be :vunderstood to theigjiust long enough to permit :theoperator tomake this interchange.Furthern1one,.1the,heateof the turn .table will; be. so determined asto. :be sufficient to cause the ithorough drying-ref the flongs into themaking of matrices while they pass from. the expressing roller :27

around to the station for seat A. Thus it will, be 1 noted. that theprocess .is'rapid, relatively easy, and efficient.

I claim: I a p A machine for makingstereotype-matrices in a continuouscirculating operation ,comprising a support having a plunal'ityof seatsthereon for receiving ..;and holding a plural- .ity of:- type forms upon'WhlCll'L like :number .of'flongs may be placedin succession from.

a fixed position, means to actuate the ;support along a continuous,ipath, means to :op-

erate upon thezflon-gsiinasuccessionsto cause the same to beproperlyrmoldedinconnection with thetype'forms whilein mammaliam'eans'tocause I the hardening-ofnthe flongs after suchmolding operation astheyin succession alongsaidpath without the aid pass of human factors after;the -flongs .havebecn placed upon the face ,of the type ;forms. and arereturned in successionrto said'ifixedzposition. 7

- a In testimony whereof signature.

. GROVER REP-P.

